package com.atguigu.gulimall.order.config;

import com.atguigu.gulimall.order.entity.OrderEntity;
import com.rabbitmq.client.AMQP;
import com.rabbitmq.client.Channel;
import org.springframework.amqp.core.*;
import org.springframework.amqp.rabbit.annotation.RabbitListener;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;

import java.io.IOException;
import java.util.HashMap;

/**
 * Data time:2022/4/14 17:14
 * StudentID:2019112118
 * Author:hgw
 * Description: springboot 允许像加组件一样创建
 */
@Configuration
public class MyMQConfig {


    /**
     * Spring中注入Bean之后，容器中的Binding、Queue、Exchange 都会自动创建（前提是RabbitMQ中没有）
     * RabbitMQ 只要有，@Bean属性发生变化也不会覆盖
     * @return
     * Queue(String name, boolean durable, boolean exclusive, boolean autoDelete, Map<String, Object> arguments)
     */
    @Bean
    public Queue orderDelayQueue(){
        HashMap<String, Object> arguments = new HashMap<>();
        /**
         * x-dead-letter-exchange ：order-event-exchange 设置死信路由
         * x-dead-letter-routing-key : order.release.order 设置死信路由键
         * x-message-ttl ：60000
         */
        arguments.put("x-dead-letter-exchange","order-event-exchange");
        arguments.put("x-dead-letter-routing-key","order.release.order");
        arguments.put("x-message-ttl",300000);

        Queue queue = new Queue("order.delay.queue", true, false, false,arguments);
        return queue;
    }

    @Bean
    public Queue orderReleaseOrderQueue(){
        return new Queue("order.release.order.queue", true, false, false);
    }

    @Bean
    public Exchange orderEventExchange(){
        // TopicExchange(String name, boolean durable, boolean autoDelete, Map<String, Object> arguments)
        return new TopicExchange("order-event-exchange",true,false);
    }

    @Bean
    public Binding orderCreateOrder(){
        // Binding(String destination, Binding.DestinationType destinationType, String exchange, String routingKey, Map<String, Object> arguments)
        return new Binding("order.delay.queue",
                Binding.DestinationType.QUEUE,
                "order-event-exchange",
                "order.create.order",
                null);
    }

    @Bean
    public Binding orderReleaseOrder(){
        // Binding(String destination, Binding.DestinationType destinationType, String exchange, String routingKey, Map<String, Object> arguments)
        return new Binding("order.release.order.queue",
                Binding.DestinationType.QUEUE,
                "order-event-exchange",
                "order.release.order",
                null);
    }

    /**
     * 订单释放直接和库存释放进行绑定
     * @return
     */
    @Bean
    public Binding orderReleaseOtherBingding(){
        // Binding(String destination, Binding.DestinationType destinationType, String exchange, String routingKey, Map<String, Object> arguments)
        return new Binding("stock.release.stock.queue",
                Binding.DestinationType.QUEUE,
                "order-event-exchange",
                "order.release.other.#",
                null);
    }

    @Bean
    public Queue orderSeckillOrderQueue() {
        return new Queue("order.seckill.order.queue",true,false,false);
    }

    @Bean
    public Binding orderSeckillOrderQueueBinding() {
        return new Binding("order.seckill.order.queue",
                Binding.DestinationType.QUEUE,
                "order-event-exchange",
                "order.seckill.order",
                null);
    }
}
